A woman walks into a vet's waiting room. She's dragging a wet rabbit on a leash. The rabbit does not want to be there. "Sit, Fluffy," she says.
Fluffy glares at her, and sopping wet, jumps up on another customer's lap, getting water all over him.
"I said sit, now there's a good Fluffy," says the woman, slightly embarrassed. Fluffy quite miserable and perhaps feeling rebellious, squats in the middle of the room and urinates.
The woman, mortally embarrassed, shouts, "Darn it Fluffy, will you be good?!"